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A Study Comparing Two Different Denture Base Materials in Implant Retained Overdentures

NCT07271641 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 16

Last updated 2025-12-09

No results posted yet for this study

Summary

The aim of removable prosthodontics is not only to restore lost oral structures but also to preserve the remaining tissues. Implant-retained overdentures have shown superior outcomes over conventional dentures by reducing residual ridge resorption, enhancing prosthesis support and retention, and improving patients' quality of life. Retention can be further optimized through the use of various attachment systems such as bars, studs, magnets, and telescopic crowns.

Traditional PMMA denture bases have limited flexibility, making their extension into soft-tissue undercuts challenging. The introduction of flexible resin materials has improved adaptation to deeper undercuts, enhancing retention while minimizing patient discomfort and absorbing functional stresses. Additionally, flexible resins may reduce microbial colonization by improving blood circulation to the underlying mucosa and supporting salivary defense mechanisms against Candida albicans.

Recently, innovative attachment systems such as Novaloc have been developed, featuring PEEK retentive caps and an amorphous diamond-like carbon coating to minimize wear and maintain long-term retention. Their versatile design allows better accommodation of gingival variations and contributes to improved patient satisfaction and treatment success.

Conditions

  • Edentulous Alveolar Ridge In Mandible
  • Edentulous Jaw
  • Edentulous Mouth
  • Implant Supported Overdenture
  • Attachments
  • Dental Implant
  • Complete Edentulism

Interventions

PROCEDURE

Conventional acrylic resin denture

Mandibular complete dentures made of heat-cured acrylic resin polymethylmethacrylate (PMMA). In the mandible, two implants were inserted in the symphyseal area and retained by Novaloc attachments.

PROCEDURE

Flexible resin denture

Mandibular overdentures were made of the flexible acrylic resin breflex, In the mandible, two implants were inserted in the symphyseal area and retained by Novaloc attachments

Sponsors & Collaborators

  • Al-Azhar University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
60 Years
Max Age
70 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2024-07-15
Primary Completion
2025-11-01
Completion
2025-11-20

Countries

  • Egypt

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07271641 on ClinicalTrials.gov